Finally, the stability of a type of time-varying differential system with multi-delay was discussed.
最后，讨论了一类时变多时滞微分系统的稳定性。
A class of cubic differential system is studied in this paper, in which origin is nilpotent singular point.
研究了一类原点为三次幂零奇点的三次微分系统。
We give general integral of quadratic differential system with center in two cases under the Chinese classification.
本文给出在中国分类之下二次微分系统有中心时两种情况的通积分。
The sufficient conditions of the weak exponential asymptotic stability of impulsive differential system are obtained.
得到一个关于脉冲微分方程弱指数渐近稳定的判定定理。
The result of positioning precision test shows that the positioning precision of the GPS real time differential system based on GPRS has attained cm-level.
实际测试结果表明：基于GPRS的GPS实时差分系统达到了厘米级定位精度。
By the discretization of spatial variable in the equation, a third-order differential system of equations containing periodic time-varying coefficient is derived.
采用微分求积法对方程中的空间变量进行离散，得到仅含有时间变量的三阶周期系数微分方程组。
In the second part, we discuss the time-optimal control problem for an ordinary differential system with a pointwise state-constraint. We give the explicit solution.
第二部分讨论一个带有逐点状态约束的四阶常微分系统的时间最优控制问题，给出了显式解。
So, it has a practical significance to study the character of solutions of either degenerate differential system with delay or impulsive differential equations with delays.
因此研究退化、脉冲时滞微分方程解的性态具有重要的现实意义。
In this paper, we use the comparison method to discuss the global existence of solutions of a delay-differential system. Some criteria for the global existence of RFDE are given.
本文利用比较方法讨论延滞系统解的整体存在性问题，得出延滞系统解的整体存在性的若干判别准则。
The planar delay differential system (1) has significant biological and physical backgrounds. For example, some special cases of (1) have been proposed as models of neural networks.
平面系统（1）具有重要的生物和物理背景，大量的神经网络模型都是以这种形式被提出的。
This paper is devoted to the qualitative analysis of a differential system for three molecular saturated reaction. The conditions for the existence and nonexistence of limit cycles are obtained.
采用定性分析的方法，讨论了某类三分子饱和反应系统的极限环存在和不存在的条件。
It is the basis of various hinds of differentiation of syndromes and the basic diagnostic method of all clinical branches of TCM, and an important component part of all differential system in TCM.
它是其它辨证的基础，也是所有中医临床分支学科的疾病诊断方法，是中医辨证系统的重要组成部分。
It is the basis of various hinds of differentiation of syndromes and the basic diagnostic method of all clinical branches of TCM, and an important component part of all differential system in TCM.
它是其它辨证的基础，也是所有中医临床分支学科的疾病诊断方法，是中医辨证系统的重要组成部分。
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